MCQ
- ✓
- B
- C
- D
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Answer
Correct option: A.
a
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Similar questions
Given below are two statements.
→Statement $I :$ Phenols are weakly acidic.
Statement $II :$ Therefore they are freely soluble in $NaOH$ solution and are weaker acids than alcohols and water.
Choose the most appropriate option
A reaction is $50\%$ complete in $2$ hours and $75\%$ complete in $4$ hours. The order of reaction is
→The reaction of white phosphorus on boiling with alkali in inert atmosphere resulted in the formation of product $'A'$. The reaction $1\, mol$ of $'A'$ with excess of $AgNO _{3}$ in aqueous medium gives ............... mol$(s)$ of $Ag$. (Round off to the Nearest Integer).
→Match the following:
→| Column $I$ | Column $II$ |
| $(A)$ $\mathrm{Bi}^{3+} \longrightarrow(\mathrm{BiO})^{+}$ | $(P)$ Heat |
| $(B)$ $\left[\mathrm{AlO}_2\right]^{-} \longrightarrow \mathrm{Al}(\mathrm{OH})_3$ | $(Q)$ Hydrolysis |
| $(C)$ $\mathrm{SiO}_4^{4-} \longrightarrow \mathrm{Si}_2 \mathrm{O}_7^{6-}$ | $(R)$ Acidification |
| $(D)$ $\left(\mathrm{B}_4 \mathrm{O}_7^{2-}\right) \longrightarrow\left[\mathrm{B}(\mathrm{OH})_3\right]$ | $(S)$ Dilution by water |
In the given reaction $'A'$ is
→$\left( A \right)\xrightarrow{{\operatorname{Re}duction}}\left( B \right)\xrightarrow{{HN{O_2}}}{C_2}{H_5}OH$
Which of the following belong to actinoids series
Select the correct statement about the given complex
For the reaction $CO ( g )+ Cl _{2}( g ) \rightleftharpoons COCl _{2}( g )$ , $\frac{ K _{ p }}{ K _{ c }}$ is equal to
→Match List-$I$ with the List-$II$
→|
List-$I$ Reaction |
List-$II$ Type of redox reaction |
| $(A)$ $\mathrm{N}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{NO}_{(\mathrm{g})}$ | $(I)$ Decomposition |
| $(B)$ $\begin{aligned} & 2 \mathrm{~Pb}\left(\mathrm{NO}_3\right)_{2(\mathrm{~s})} \rightarrow 2 \mathrm{PbO}_{(\mathrm{s})}+4 \mathrm{NO}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})}\end{aligned}$ | $(II)$ Displacement |
| $(C)$ $\begin{aligned} 2 \mathrm{Na}_{(\mathrm{s})}+2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightarrow 2 \mathrm{NaOH}_{(\mathrm{aq} .)}+\mathrm{H}_{2(\mathrm{~g})}\end{aligned}$ | $(III)$ Disproportionation |
| $(D)$ $\begin{aligned} 2 \mathrm{NO}_{2(\mathrm{~g})}+2-\mathrm{OH}_{(\mathrm{aq})} \rightarrow \mathrm{NO}_{2(\mathrm{aq} .)}^{-}+\mathrm{NO}_{3(\mathrm{qq} .)}^{-}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})}\end{aligned}$ | $(IV)$ Combination |
Choose the correct answer from the options given below:
What is the radius ratio for $2^{nd}$ orbit of $Li^{+2}$ ion $3^{rd}$ orbit of $Be^{+3}$ ion ?
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